ARQ Protocols in Cognitive Decode-and-Forward Relay Networks: Opportunities Gain

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dc.contributor.authorZhang, Zongsheng
dc.contributor.authorWu, Qihui
dc.contributor.authorWang, Jinlong
dc.coverage.issue1cs
dc.coverage.volume24cs
dc.date.accessioned2015-05-21T12:36:03Z
dc.date.available2015-05-21T12:36:03Z
dc.date.issued2015-04cs
dc.description.abstractIn this paper, two novel automatic-repeat-request (ARQ) based protocols were proposed, which exploit coop- eration opportunity inherent in secondary retransmission to create access opportunities. If the signal was not decoded correctly in destination, another user can be acted as a relay to reduce retransmission rounds by relaying the signal. For comparison, we also propose a Direct ARQ Protocol. Specif- ically, we derive the exact closed-form outage probability of three protocols, which provides an effective means to evalu- ate the effects of several parameters. Moreover, we propose a new metric to evaluate the performance improvement for cognitive networks. Finally, Monte Carlo simulations were presented to validate the theory analysis, and a comparison is made among the three protocols.en
dc.formattextcs
dc.format.extent296-304cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2015 vol. 24, č. 1, s. 296-304. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2015.0296en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/38765
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2015/15_01_0296_0304.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectCognitive relay networksen
dc.subjectoutage probabilityen
dc.subjectautomatic-repeat-requesten
dc.titleARQ Protocols in Cognitive Decode-and-Forward Relay Networks: Opportunities Gainen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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